We develop a theoretical model of human skill formation and emigration. We extend the existing brain drain models, by partly endogenizing the heterogeneity of individuals, by introducing aspirations. Emigration of an individual will result in a migration experience, which increases the migrant's aspirations. This will induce her to invest more in the education of her children back home. We nd that this aspirations e ect increases the average skill level in the society for a given migration rate. We show that the optimal migration rate that maximizes the post-migration skill-rate of the population is higher if we allow for the aspirations e ect of migration. We use panel data from Indonesia to demonstrate that a migration experience has an aspirations increasing e ect and calibrate our model accordingly. Our results suggest that there are potentially more countries than previously thought which could bene t from migration.
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